Best NVMe M.2 SSD for caching

Last updated on 06 Nov 2023 📧 Subscribe

Best NVMe M.2 SSD for caching

Hello, so I have a DS1821+ that I use for my Plex file station, I use a pc for the server itself. I do know my metadata folder is closer to 800 GB. I am looking to install a NVMe SSD for cache. I do not know if the models that are not listed on Synology’s capable list will work. Furthermore, I do not know the recommended size to get, I was thinking 1 TBx2. Can you please advise.

Samsung 970 EVO Plus 1TB M.2 NVMe Internal Solid State Drive (MZ-V7S1T0B/AM)

Samsung 980 1TB NVMe PCI-e Internal Solid State Drive (MZ-V8V1T0B/AM)

Silicon Power 1TB PCIe Internal Solid State Drive (P34A80 NVMe PCIe SSD)

WD_BLACK 1TB PCIe Gen4 x4 Internal Solid State Drive (WDBAUY0010BNC-WRSN)

When choosing NVMe for caching you need to look at reliability ratings such as DWPD/MTBF. Here are a few on the list
https://nascompares.com/answer/nvme-m-2-list-with-endurance-dwpd-mtbf/
Caching means a lot of read and write operations, unlike regular storage situation.
You would need to look at models with 0.5DWPD and above

970 pro    – 0.66DWPD

990pro – 0.68 DWPD

Synology SNV3400    – 0.68DWPD

Seagate FireCuda 510   – 0.7 DWPD
Seagate IronWolf 525 – 0.7 DWPD
Seagate Firecuda 530    – 0.7 DWPD
Seagate PS5 Game drive – 0.7 DWPD

Seagate FireCuda 520  -0.9 DWPD
WD Red SN700              – 1.0DWPD

 

 

MODEL CAPACITIES INTERFACE CONTROLLER READ SPEED WRITE SPEED READ IOPS WRITE IOPS TBW MTBF DWPD
Synology NVMe 400GB, 800GB NVMe PCIe 3.0 x4 NVMe 1.3 3,000 MB/s 750-1,000 MB/s 225,000-400,000 45,000-70,000 491-1,022 TB 1.8 million hours 0.68 DWPD
Samsung 990 Pro 1TB, 2TB PCIe Gen 4.0 x4 NVMe 2.0 Up to 7,450 MB/s Up to 6,900 MB/s Up to 22,000 Up to 1,550,000 N/A 1.5 million hours 0.68 DWPD
FireCuda 530 SSD 500GB, 1TB, 2TB, 4TB PCIe Gen4 ×4 NVMe 1.4 NVMe 1.4 3D TLC 7,250-7,300 MB/s 3,000-6,900 MB/s 400,000-1,000,000 700,000-1,000,000 640-5,100 TBW 1.8 million hours 0.7 DWPD
FireCuda 520 500GB, 1TB, 2TB PCIe Gen4 ×4 NVMe 1.3 3D TLC 5,000 MB/s 2,500-4,400 MB/s 430,000-760,000 630,000-700,000 850-3,600 TBW 1.8 million hours 0.9 DWPD
WD Red SN700 250GB-4TB PCIe Gen3 x4 8 Gb/s NVMe 1.3 Sandisk 3D TLC 3,100-3,430 MB/s 1,600-3,100 MB/s 220K-550K 180K-560K 500-5,100 TBW 1.75 million hours 1.0 DWPD

 

I hope this helps.

 



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2 thoughts on “Best NVMe M.2 SSD for caching”

  1. Why is IronWolf 525 that has less DWPD (0.7) and TBW (2800TB) selling for more than DOUBLE the price of FireCuda 520 (DWPD 0.9 and TBW 3600TB <= according to NewEgg)? What does IronWolf 525 have that gets it this premium? ($396.19 on Amazon for IronWolf 525, vs $169 on NewEgg FireCuda at the time of writing.)

    Reply